Kwang-soo married Lami, a former nightclub hostess working under his mother Sera. Living together, Sera and Lami are in-laws, friends and somehow completely strangers. While living with huge credit card debts, they are asked by Kwang-soo to retrieve a diamond worth five million dollars that Kwang-soo’s friend choked on and buried with him. Kwang-soo was supposed to steal the diamond and give it to his boss but he and his friend stole it and ran away. His boss found out and chased them at which point Kwang-soo’s friend accidentally swallowed and choked on the diamond. The boss will stop at nothing to find out where the diamond is by doing everything to get Kwang-soo out of jail after he turned himself in to the police. Now, Sera and Lami are searching for the diamond themselves with the gang boss pressuring them with everything he’s got.
Several Questions That Make Us Happy is composed of six different stories in a omnibus way, describing mondern society's loneliness, misunderstanding between couples, trust with others, courtesy between lovers, and self-centered blame for others, etc. It is based on the sincere question why we are so unhappy and how I can make happiness.
Thirty year-old teacher In-young falls in love with her own student, Suk. What attracted her to the boy was the fact that he resembled her first love in every way, and even shared the same name. But with the sudden return of her long-lost love, and the appearance of a cute high school girl who confesses her love towards the boy Suk, In-young finds herself lost among the two first loves.
